Full documentation: http://d3-annotation.susielu.com
You must include the d3 library before including the annotation file. Then you can add the compiled js file to your website
You can add the latest version of d3-annotation hosted on cdnjs.
You can add d3-annotation as a node module by running
npm i d3-svg-annotation -S
I would love to hear from you about any additional features that would be useful, please say hi on twitter @DataToViz.
Rickshaw has an annotation tool
Benn Stancil has an annotation example for a line chart
Micah Stubbs has a nice VR chart based on swoopy drag
Scott Logic evokes “line annotation” in a graph (different concept).
Seven Features You’ll Want In Your Next Charting Tool shows how the NYT does annotations
John Burn-Murdoch example with adding/removing and repositioning annotations